The connection was reset

I have this appearing my firewall was off and I don,t know what to do how can I brows to mozilla?

The connection to the server was reset while the page was loading.

* The site could be temporarily unavailable or too busy. Try again in a few
moments.

* If you are unable to load any pages, check your computer's network
connection.

* If your computer or network is protected by a firewall or proxy, make sure
that Firefox is permitted to access the Web.

Firefox version

mozilla 3.6

I have this appearing my firewall was off and I don,t know what to do how can I brows to mozilla?
The connection to the server was reset while the page was loading.
* The site could be temporarily unavailable or too busy. Try again in a few
moments.
* If you are unable to load any pages, check your computer's network
connection.
* If your computer or network is protected by a firewall or proxy, make sure
that Firefox is permitted to access the Web.
== Firefox version ==
mozilla 3.6